Posted by Zong-in Kim on November 27, 2002 at 22:26:10:
In a way to keep apartment buildings sustainable, the walls and roof-tops of it should be designed to decrease energy use and emissions.
The 'Earth Column' that contains earth in a water-proof material case is a theory I've been suggesting in these years in Korea. Rooftops (depth of earth layer one foot at the most) and balconies (earth laden case with one foot width and three feet height) the whole apartment building may stand as one organic earth system.
Up to today, rooftop earth layer's depth has been recommended three feet or above. I can tell you, however, this is too much as far as earth load is concerned. Instead, using the pots supporting the trees/shrubs above the one foot deep earth layer, the depth can be redued to a great extent.
I'm now living on the fourth floor of five storied apartment building.
On the rooftop of the block I have fourty-some square meters of testing bed with one to four inches depth of earth that has trees/shrubs of various species. The result is successful !
The key point?
It is in the opening of the holes at the bottom of the pots in the beginning when transplant the trees/shrubs pots on the rooftop garden !
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